if __name__=="__main__":
  num = int(input())
  if num < 400:
    pass
  elif num<600:
    print(8)
  elif num<800:
    print(7)
  elif num<1000:
    print(6)
  elif num<1200:
    print(5)
  elif num<1400:
    print(4)
  elif num<1600:
    print(3)
  elif num<1800:
    print(2)
  elif num<2000:
    print(1) if __name__=="__main__":
  num = int(input())
  if num < 400:
    pass
  elif num<600:
    print(8)
  elif num<800:
    print(7)
  elif num<1000:
    print(6)
  elif num<1200:
    print(5)
  elif num<1400:
    print(4)
  elif num<1600:
    print(3)
  elif num<1800:
    print(2)
  elif num<2000:
    print(1) __name__=="__main__" __name__ "__main__" num = int(input()) num int(input()) int input() input if num < 400:
    pass
  elif num<600:
    print(8)
  elif num<800:
    print(7)
  elif num<1000:
    print(6)
  elif num<1200:
    print(5)
  elif num<1400:
    print(4)
  elif num<1600:
    print(3)
  elif num<1800:
    print(2)
  elif num<2000:
    print(1) num < 400 num 400 elif num<600:
    print(8)
   num<600 num 600 print(8) print 8 elif num<800:
    print(7)
   num<800 num 800 print(7) print 7 elif num<1000:
    print(6)
   num<1000 num 1000 print(6) print 6 elif num<1200:
    print(5)
   num<1200 num 1200 print(5) print 5 elif num<1400:
    print(4)
   num<1400 num 1400 print(4) print 4 elif num<1600:
    print(3)
   num<1600 num 1600 print(3) print 3 elif num<1800:
    print(2)
   num<1800 num 1800 print(2) print 2 elif num<2000:
    print(1) num<2000 num 2000 print(1) print 1 num = int(input()) int(input()) num
if __name__=="__main__":
  num = int(input())
  if num < 400:
    pass
  elif num<600:
    print(8)
  elif num<800:
    print(7)
  elif num<1000:
    print(6)
  elif num<1200:
    print(5)
  elif num<1400:
    print(4)
  elif num<1600:
    print(3)
  elif num<1800:
    print(2)
  elif num<2000:
    print(1)